Hollow wall carton formed of two blanks



Aug. 5, 1952 'w. P. FRANKENSTEIN 2, 0

HOLLOW WALL CARTON FORMED OF TWO BLANKS I 4 Sheets-Sheet 1 Filed Jan. 8, 1946 1 v lNV ENTOR. Win/Am Pfznuxsn's-rzm BY Aug. 5, 1952 Filed Jan. 8. 1946 W. P. FRANKENSTEIN HOLLOW WALL CARTON FORMED OF TWO BLANKS 4 Sheets-Sheet 2 IN VEN TOR.

A uarpg WpLL/m I? FRAME/mum Aug. 5, 1952 1 w. P. FRANKENSTEIN 2,505,894 ,HoL Low WALL CARTON FORMED OF TIO'BLANKS 1 Fild Jan. 8. 4 Sheets-Sheet s IN VEN TOR. WILL/0m I? FRANKENSTEIN Auoryg Aug. 5, 1952 w. P. FRANKENSTEIN 2,605,894

7 HOLLOW WALL CARTON FORMED OF TWO BLANKS Filed Jan. 8, 1946 '4 Sheets-Sheet 4 INVENTOR.

9e WILL/m I. FUNKE/YSTEH;

. Ana/pg Patented Aug. 5, 1 952 HOLLOW WALL og vr N FORMED oF'rwo ANKS' William P. Frankenstein, Cincinnati, Ohio. Application January 8, 1946, Serial No. 639,767

This invention relates to improvements in cartons or'boxes and particularly to cartons or boxes of the knocked-down type.

One of the chief objects of. the present invention is the provision 'of a knocked-down box which is provided with a lid and in the trade may be referred to as of the break-back lid type.

Another object of this invention is the provision of a box or carton as above referred to which is provided with hollow or double walls having thewall membersthereof spaced from one another. V

Another object of this invention is the provision of a cartonor box as above referred to in which the major portion of the carton, including the hollow walls, at three sides thereof and lid, are formed from a single blank while the remaining wall is formed from a second blank. p

A further object of the invention is the provision of a carton of the class above referred to and including in its final assembled form, four hollow walls and lid in which the carton proper is formed from a single blank and which carton includes three hollow walls and one plain'wall and in which the fourth hollow wall and'lid are formed from a supplementary or second blank.-

A still further object of this invention is the provision of a plurality of blanks, each provided with cooperating means whereby they are detachably connected to one another to provide a hollow wall carton including a lid and which lid is of the break-back type to act as an easel for display purposes for the box proper.

Other objects and advantages of the present invention should be readily apparent by reference to the following specification considered in conjunction with the accompanying drawings forming apart thereof and it is to be understood that any'specifications may be made in the exact structural details there shown and, described, within the scope of the appendedclaims, without departing from or exceeding the spirit of the invention. 7

In the drawings:

Fig. 1 is a perspective view of the closed carton of this invention.

Fig. 2 is the perspective view of the carton of Fig. 1 set up for display purposes.

Fig. 3 is an extended plan view of a blank from which the major portion of the carton of Figs. 1 and 2 is formed.-

Fig. 4 is a view of the blankof Fig. 3 showing it in each of two advanced stages of i 95 manufacture.

13 Claims. (Cl. 20645.22)

Fig. 5 is asectional view through the blank in its final form prior to shipment to the user taken on line 5-5 on Fig. 4. p

Fig. 6 is a planfview of a blank which forms a part of the carton of Figs. 1 and 2 and cooperates with the blank of Fi 3.

Fig. 7 is a perspective view of the blank of Fig. 6 in set-up condition. V

Fig. 8 is a perspective view showing the blanks of Figs. 3 and 6 in the process of assembling to make the carton of Figs. 1' and 2.

Fig. 9 is a plan view of a blank in two stages of assembly which takes the place of the blank of Fig. 6 and part of the blank of Fig. 3 and therefore illustrates a modification in the carton as a whole.

Fig. 10 is a perspective view of the blank of Fig. 9 in erected position.

Fig. 11 is a plan view of a blank showing a further modification in the details of construction of a carton forming the subject of this invention.

Fig. 12 is a plan view of a modification blank for use with the blank of Fig. 11, said blank of Fig. 12 taking the place. of the blank of Fig. 6.

Fig. 13 is a perspective view showing the blank of Fig. 12 in a set-up or assembled position.

Fig. 14 is a perspective View showing the blanks of Figs. 11 and 12 in the process of erection to provide a modified carton or box of the kind illustrated in Figs. 1 and 2.

Throughout the several views of the drawings similar reference characters are employed to denote the same or similar parts.

As was noted above, this invention pertains to a knocked-down carton provided with an integral lid for enclosing the contents of the carton for packing and shipping purposes and which lid is further utilizable as an easel for display of merchandise on a counter and'from the carton thereof individual sales may be made. The carton of this invention will find its use in the packing and shipping of single items as well as in the packing and'shipping of a plurality of items; as an example of the plurality of individual items; golf balls, flash light batteries andthe like, and which item's'mayube dispensed singly 'from the carton as distinguished from a bulk or full carton sale. The-carton in its use as an enclosing and shipping container is best illustrated in Fig. '1, while, when in use as for displaying merchandise therein and from which sales may be made, is best illustrated in Fig. 2.

As intimated, above, the carton of this invention is formed of'two' blanks which may be referred to as a major blank and a minor blank, the former making up the major portion of the carton while the latter makes up the minor portion thereof. The major blank, of one form of the invention, is illustrated most clearly in Fig. 3, while the minor blank is illustrated most clearly in Fig. 6 and these figures will now be described in detail along with the disclosure in Figs. 1, 2, 4, 5, 7, and 8.

The major blank of Fig. 3 comprises a bottom panel l5 defined in its entirety by score or fold lines l6, I1, [8, and 19. The score or fold lines H and i9 may be referred to as th sides of the carton and respectively hingedly connect to the bottom panel similar extensions 26, and 2| which form the side walls of the carton. The score or fold lines I6 and I8 may be respectively referred to as the front and back of the carton and respectively hingedly connect to the bottom panel l5 extensions 22 and 23 which extensions respectively form the front wall of the carton and the back wall and cover for the carton.

The front wall extension 22 is provided with a plurality of score or fold lines 24, 25, 26, and 2'1, thereby forming in said extension panels 28, 29, 39, 3| and 32. Each of these panels is of a length equal to that of the bottom panel between its sides I! and [9. The panel 29 in the erected cartons form the front Wall outer wall member and has its ends defined by score or fold lines 33and 34, respectively extensions of score or fold lines I7 and IS. The panel 29 forms the front wall top wall member and its length is defined by cut lines 35 and 36 respectively in alignment with the score or fold lines 32 and 33. The panel in the erected carton forms the front wall inner wall member and has its ends defined by score or fold lines 3'! and 39 respectively in alignment with cut lines and 36. The front wall inner wall member 38 has hingedly connected therewith through the score or fold lines 31 and 38 tucking flaps 39 and 46 respectively hingedly supporting spacer flaps 4i and 42 through score or fold lines 43 and 44. The said front wall inner wall member 36 is further provided respectively adjacent its ends with elongated apertures 45 and 46 which extend inwardly of the panel from its score or fold lines 26. The panel 31 in the erected carton constitutes the front wall bottom wall member while the panel 32 forms the gluing flap for completing the front wall.

The blank extension 23 from the score or fold line i8 is likewise provided with a plurality of score or fold lines 41, 48, and 49 therebyforming in said extension 23 panels 50, 5|, 52, and 53. The length of these panels of extension 23 is substantially equal to that of the bottom panel I5 between its score or fold lines I! and I9. The panel 56 in the erected carton forms the back wall outer wall member and has its ends defined by score or fold lines 54 and 55. The said score or fold lines 54 and 55 respectively hingedly connect to the panel 59 tucking flaps 56 and 5'1. Each of the tucking flaps 56 and 51 has respectively, hingedly connected thereto through score or fold lines 58and 59, spacer flaps 60 and El. The panels 5land 52 together constitutes the cover for the carton with the panel 52 having its ends defined by score or fold lines 62 and 63 while the ends of the panel 5! are cut lines in alignment with the score or fold lines 62 and 63 aswell as in alignment with score or fold lines 54 and 55 disclosed in the drawings as extensions Of the'bottom panel score or f ld lines I! and [9. The score or fold lines 62 and 63 respectively hingedly connect to the panel 52 flaps 64 and 65 which are substantially triangular in area forming in the closed carton cover side flanges and in the display position of said carton the supporting easel. The said flaps 64 and 65 are respectively provided with a diagonal score or fold line 66 and 61 thereby forming within each flap 64 and 65 a triangular area to each of which is applied adhesive 68 and 69, whereby the cover front flange is attached to the side flanges as will later be made clear. The panel 53 in the assembled carton constitutes when closed the cover front flange and when open on display ties the easel flaps to one another and this panel 53 has its ends defined by score or fold lines '10 and H respectively in alignment with the cover panel score or fold lines 62 and 63. The score or fold lines H3 and H respectivelyhingedly connect to the ends of the panel 53 glue flaps "l2 and 13 which are adhesively secured to the adhesive carryingportion of flaps 64 and 65. p v

The side wall extensions 20 and 2| are substantially identical and it is believed sufficient if but one of them be described in detail.

Accordingly extension'2ll is provided with a plurality of score or fold lines 14, 15, and 76 thereby providing between the fold or score line ll and end of extension, panels 11, 18, I9 and 86. The panel 11 in the assembled carton forms the side wall outer wall member and has one end defined by the out line 8| and the other end defined by the score or fold line 82. The panel 18 constitutes the side Wall top wall member and has its ends contoured, shown in the drawing as biased and indicated by reference characters 83 and 84. The contoured ends 83 and 84 serve a useful and decorative purpose since the length of the panel 18 at the end adjacent the outer wall member 11 is of a length equalthereto while the other end is reduced to the distance between the inner wall members of the front and back walls. The ends of the panel 19 are defined by score or fold lines 85 and 86 which respectively hingedly connect to the said inner wall panel spacing flaps 87 and 66. Beyond the spacing flaps the panel 19 carries locking tabs 89 and 96. The remaining panel 89 of the extension 26 constitutes a spacer tab and in the assembled carton spaces the lower ends of the inner and outer wall members'from one another.

The adjacent ends of the front wall outer wall member 34 and the side wallouter wall member 71 respectively through their score or fold lines hingedly connect between them corner piece 9| provided with a diagonal score or fold line. 92 whereby said corner piece forms, what is commercially known, as, a bellows corner. In practice and as will later be made clear the bellows corner takes the place of a tucking flap in assembly.

After the blank has been cut and scored as just described adhesive 68 and 69 is applied to the outer-most corners of the easel flaps 64 and 65 and adhesive 93 isapplied to-the surface of the front wall outer wall member panel 28. The blank then has the glue flap 32 folded on the score or fold line 21 onto the panels 36 and 3!. At thesame time the easel flaps 64 and 65 are folded respectively on the score or fold lines 62 and 63 onto the cover panel 52 and the portions of each of said flaps 64 and 65 beyond their respective score or fold lines 66 and 61 is bent or folded backward onto the under surface of said the base I5.

into engagement with adhesive 93 on the front wall outer wall member panel. At thesa-me. time the cover flange panel 53 is folded on the score or fold line 49 to bring'its flaps I2 and I3 into contact with the adhesive portions 58 and 69 of the easel fiaps 64 and 55. The blank'is now as illustrated in the lower half of Fig. '4 ready for shipment to the ultimate user.

It will be noted that the device as defined provides a carton or box having a hollow or'double front Wall and side walls together with a single back wall and a cover or lid. The blank of Fig. 6 sets up as illustrated in Fig. 7 to provide the remaining hollow or double back wall. This blank of Fig. 6 is essentially rectangular in area and is provided with a plurality of score or fold lines 94, 95, 96 and 91 thereby providing between them and the ends of the blank a plurality of panels, 98, 99, I00, I9I and I02. The ends of the panels 98, 99, I and I02 are defined bythe sides of the blank while the ends of the panel Iill is defined by score or fold lines I03 and I04 which respectively hingedly connect thereto tucking tab I05 and I00. The panel IOI is further provided inwardly of its ends elongated apertures I01 and I08.

After the blank of Fig. 6 has been cut and scored as just described with the panel'l02 folded onto the panel IOI about the fold or score line 91 adhesive (not shown) is applied to the now exposed surface thereof. Panels 93 and 99 are now folded on the score or fold line 95 to bring the panel 98 into contact with the adhesive of panel I02. It is in this condition that the blank of Fig. 6 is shipped to the user.

The usenupon receipt of the main blank in its folded form of the lower half of Fig. 4 and the blank of Fig. 6, folded as described and desiring to set up the carton for use, first opens the blank of Fig. 6 by causing panels 98 and I02, as a unit,

and panel I00 to likewise assume a parallel relationship which results in rectangular tube as illustrated in Fig. 7. In this set-up position the panel IOI constitutes the front wall member of the carton back wall with the panel I00 forming the top wall thereof and panels 99 and I02, as a unit, forming the bottom wall. The remaining panel 99 cooperates with the'panel 50 of the main blank for providing the back wall outer Wall member. The set-up of the blank of Fig. 6 is completed by bending forward the tabs I05 and I08.

The user then turns to the main blank and raises the back wall'outer wall member 50 to be normal to the base I5 whereupon theset-up supplementary blank, assembly of Fig. 7, is placed in the position illustrated in Fig. 8. The front wall is then raised from its collapsed position to have the front wall outer wall member 28' normal to The illustration in Fig. 3 is contrary to this and discloses, for the purpose 'of clearness, the front wall in its flat position while one side wall is shown as partly erected. The

raising of th front wall automatically opens up the said wall, whereupon the innerwall" mem ber 30 is disposed parallel to the outer wall member as with the top wall 29 and bottom wall 3| separating the same; The tucking flaps 39 and 40 arethen arranged to be transverse of the base member, first the one side of the carton and then at the other. .The spacer flaps AI and 60, for example, are then bent "to be'parallel to the carton base or bottom I5. The'end wall extension, 20 for example is thenfraised to be normal to the bottom as seen for example in Fig, 8. This automatically causes the bellows corner II to be folded on itself and disposed transversely of the base. The side wall spacer flaps 81 and 88 are then or have been previously folded tobe normal to the inner wall member panel I9 whereupon the remaining flaps I8, I9, and are each folded to be normal to its adjacent flap thereby completing the set-up of the, side wall.

The second side wall isassembled in the identical manner. The top orcover of the carton is set-up by merely lifting the cover front flange panel 53 from itspositlon in Fig.4 to that illustrated in Fig. 8 thereby bringing the cover side wall panels or easel panels 64 and .65 to their operative positions as illustrated in Fig. 8.

Upon filling the carton with the desired goods the cover is closed as illustrated in Fig. 1 and then shipped. The recipient of the package, in order to display the goods, raises the cover and backwardly folds the samethereby bringing the pane1 5| of the cover into engagement with the outer surface of the back wall outer .wall member 50. Then continues to backwardly fold or break-backthecover on the score'or fold line 48 which brings theoutersurface, of the cover panel 52 into contact with theunder-surface of the carton base or bottom I5 to the position il-v lustrated in Fig. 2. The carton is then in the position simulating its support on an easel or upwardly inclining with respect tofthe supporting counter. V

From the foregoing it will'now be appreciated that there has been provided a carton or box having four hollow walls capable of use as a sturdy shipping container and has an attractive merchandise display carton. 1

This invention is capable of various modifications both as to the shape of blanks and the details thereof whereby ad'ditional strengthor ease of set-up maybe varied. The modification illustrated in Figs. 9 and 10 takes the place of the supplementary blank illustrated in Figs. 6 and '7 and at the same time combines therewith a portion of the blank of Fig. 3 and requiring a modification therein. One reason for the modification of these blanks is the size ofthe resulting carton shouldit require a main blank of greater length than cardboard or the like available or of a length greater thanthe capacity of the machine on which blanks are formed. Accordingly the blank of Fig. 9 incorporates the back wall of the carton proper together with the cover for the carton and accordingly the main blank of Fig. 3 would be modified to the extent of eliminating from it that portion thereof to the right of score or fold line 41 and including the panels 5|, 52, and 53 together with the parts carried thereby.

Specifically, the blank of Fig. 9 is provided with score or fold lines I09, H0, III, II2, I13, H4, H5, H6, and II! thereby providing panels II 8, H9, I20, I2 I22, I23, I24, I25, I20, and I21 which take place of similar'panels and fold lines in the blanks of Figs. 3 and; 6. In thismodification there is illustrated a tubular tucking'flap' or side wall reinforcement which is formed to be rectangular in cross-section from extensions I28,

clusive. In this blank ofFig. 9 a modified cover side and frontlfiange constructionis illustrated. This modified construction is adapted to be knocked-down as distinguished from a glue construction described above. Accordingly. the easel flaps 64 and 65 have hingedly connected thereto through score or fold lines I33 and I34 flaps I35 and I 35 each provided within its border with elongate apertures I31 and I 38. To cooperate with said flaps I35 and I 35 the panel I2! is formed with locking tongues I39 and I48.

After the blank hasbeen cut and scored as above described and illustrated in the upper half of Fig. 9 adhesive MI is applied to the panel I23 and the panels II 8, H9, and I folded on the score or fold line I II, to bring them into face contact with the panels I2I, I22, and I23 and thereby the adhesive I4I for securing panels H3 and I23 to one another.

The blank of Fig. 9 is set-up inthe same manner as the blank of Fig. 6 to provide a tube having a rectangular hollow construction whereupon the tubular tucking flaps are arranged as shown at the right and end of Fig. 10.. The cover may be assembled at this time or may be assembled after the carton has been otherwise completely set-up and the two blanks joinedtogether. The setting up of the cover is as follows:

Easel fiaps 64 and 65 are folded to be normal to the cover panel I24 whereupon the flaps I37 and I 38 folded to be normal to the easel fiaps and transverse of the cover panel.- Panels I26 and I21 are then folded on the score or fold line II6 to lieagainst the said-flaps I and I35 and have the locking tongues I39 and M0 respectively disposed in the elongated apertures I31 and I 38. Thescore or foldline II! is employed to assist in the insertion of the locking tongue I33 and H50 into the apertures I31 and I38..

The blanks or subassemblies of the blanks of Fig. 10 and the modified blank of Fig. 3 are assembled into a carton in the same manner as above described. 1

In each of the cartons heretofore described the fourth or back wall of the carton was first assembled and the other walls folded to retain the same in position. Inthe construction illustrated in the modification in Figs. 11 to 14, inclusive, the reverse is true, in thatfthe carton is set-up and the fourth wall inserted. In this modification the carton itself is illustrated as having a rectangular tucking flap instead of the auxiliary blank having this corner reinforcement. In this modification the cover is shown formed as thatin the blank of Fig. 3 but it is to be understood that a construction similar to that illustrated in Fig. 9 may be substituted or this construction may be substituted for that of Fig. 3 since each these types of lock forming constructions is well known, that illustrated in Fig. 3 being commercially known as a Beers construction, while that illustrated in Fig. 9 is commercially known as a hardware lock.

The only difference between-the blanks of Figs. 11 and 3 is that the tucking flaps 56 and 51 are each provided with an extension including panels I42, I43, and I44 the latter of whichis provided with adhesive I45 for attaching it to the back wall panel so that the rectangular tucking flap has connection therewith. This blank of Fig. 11 is further modified in that itsside wall inner wall members and top wall member are devoid of the spacing flap 81. and extend to the outer wall memberof the back wall.

. Substantially Y the only modification in the blank of Fig.- 12 over that of Fig. 6 is that the top wall member panel IE0 is provided with ears I46 and I4! which are given the contour of the ends of the back wall top wall member since they take its place in the assembly of the blanks.

As is noted above in this modification the main carton is first assembled and the supplementary wall is then assembled and merely inserted between the innerv wall members of the carton side walls and is held in position by locking tabs I48 and I49 extending therefrominto the elongated aperture in the side wall inner wall members as illustrated clearly in Fig. 14.

From the foregoing it will now be appreciated that there has been provided a carton or box adapted to fulfill the objects initially set forth.

What is claimed is:

1. In a carton of theclass described a main blank forming the carton proper comprising a bottom panel, a hollow front and hollow side walls and a solid back wall upstanding from said base, said hollow front and side wallsbeing formed of articulated outer, inner and top wall members, an auxiliary blank forming a hollow back wall of articulated spaced apart outer and inner wall members joined by a top wall member with said hollow wall outer and inner Wall members spaced from one another a distance as determined by the top wall member and with said hollow wall back wall outer wall member of a length to fit between the carton proper side Wall outer wall members andin face contact with the main carton solid back wall and said hollow wall back Wall inner wall member of a length to fit, at least, between the side wall inner wall members and with said hollow back wall inner and outer wall members upstanding from the carton proper bottom panel substantially to the height of the carton proper front, side and back walls, interengaging means on said hollow back wall and hollow side walls for securing the said Walls in position, and a cover hingedly carried by one of said back walls for closing the carton.

2. In a carton of the class described a main blank forming the carton proper comprising a bottom panel, a hollow front and hollow side walls anda solid back wallupstanding from said base, said hollow front and side walls being formed of articulated outer, inner and top wall members, an auxiliary blank forming a hollow back wall of articulated spaced apart outer and inner wall members joined by a top wall member with said hollow wall outer and inner wall members spaced from one another a distance as determined by the top wall member and with said hollow wall back wall outer wall member of a length to fit between the carton proper side wall outer wall members and in face contact with the main carton solid back Wall and said hollow wall back wall inner wall member of a length to fit, at least, between the side wall inner wall members and with said hollow backwall inner and outer wall members upstanding from the carton proper bottom panel substantially to the height of the carton proper front, side and back walls, interengaging means on said hollow back wall and hollow side walls for securing the said'walls in position, and a cover hingedly carried by one of said back walls for closing the carton, said cover having a depending flange along one edge thereof for engaging the carton front wall when closed, depending side flanges from said cover for a portion of said cover sides rearwardly, of the cover front flange and inclining upwardly from the ends tiall'y rectangular 'in thereof; and said cover ;having -a break-back of the" class, described formed from a main and an auxiliary blank, said main blank including a bottom :panel with extensions from each side thereof to form a front wall, a back wall and side walls, said front and side .walls extensions each being subdivided by score or fold lines into a plurality of panels to provide wallsof inner and outer wall members, a top wall member and a bottom wall member or spacing panel, said front wall extension having a glued flap projecting from itslast mentioned panel securedto the front wall outer wall'member so that said front wall has its inner, outerrand top wall members articulated to one another, the back wall extension being-subdivided to provide a back wall member, a cover andcover flanges, said auxiliaryblank being subdivided to provide an auxiliary back wall including aninner and an outer wall member and a top anda bottom wall member with saidauxiliary back wall outer wall member of a length to fit between the carton proper side wall outer wall members and in face ,contact with the main carton back wall and said auxiliary back wall inner 'wall member of a length to fit, at least, betweenthe side wall inner wall members .and with said auxiliary back wall inner and outer wall members upstanding from'the carton proper bottom panel substantially to the height of the carton proper front, side and back walls, and means associated with the auxiliary back wallmember and main blank side walls mounting and retaining the auxiliary blank. in operative position. i

4; In a carton of the class described formed of a main and an auxiliary blank, said main blank forming the carton proper including a: bottom panel with a hollow articulated front wall, hollow side walls formed from extensions from the bottompanel scored to form inner and outer wall memberswith a top wall member therebetween and spacing flaps at the outer endsof said side walls inner wall members, a back wall hingedly connected to the bottom panel, said front, side andback walls extending upwardly from the bottom panel, said auxiliary blank forming a hollowback wall and cover or lid for the carton and which, auxiliary blank back wall includes inner and outer wallvmembers and; top and bot tom wall members, tucking flaps from the :ends of the auxiliary blank back wall hingedlyconnected to its inner and outer-wall members, said tucking flaps having their upper and lower edges connected to one another in spaced apart relation corresponding to'the spacing of the auxiliaryblank back wall inner and outer wall memtucking flaps are substanvertical-cross section, and cooperating means on said auxiliarysblank back wall and main blank side walls securing the parts in operative positions. 5. In a carton of the class described a first blank forming in the erected carton a bottom and upstanding front, sideandback walls, said front andside "walls each formed of a hollow construction and including a front and a back :wall member joined by atop'wall member separating said 'front and back wall members, certain'of said front and side wallsihaving a glue flap-at the lower ends of their inner wall members whereby bers so that .the said said walls are hingedlyconnected to the carton bottom for erection from a flat to an upstanding position, an'auxiliary blank forming in tom wall members, interengaging means on said blanks securing the auxiliary back wall in position with thetop wall members of the carton front and side walls in substantially the same plane as the top'wall member of the auxiliary back wall and with the auxiliaryback wall outer wall member in face contact with the carton main back wall, and a cover hingedly connected to one of said blanks for swingingmovement toward the said top wall members.

6. In a carton of the class described a first blank forming in the erected carton a bottomand upstanding front, side andjback walls, said front and side walls each comprising articulated outer wall member, top wall member, inner wall mem-.- ber and bottom wall member or spacer member, said front wall having a glue flap articulated to its bottom wall member and attached to its outer wall member, tucking flaps at the ends of the front wallinner wall member and back wall disposed transversely of the bottom, spacer flaps carried by said tuckingdflaps, said'tucking flaps with their spacing flaps enfolded by the side walls inner, outer and top wall members, a lid articulated to said. back wall including flanges at the free end thereof and for a portion along the sides thereof, said flanges having their adjacent ends arranged interconnected to form lid depending flanges, said lid having a break-back score transversely thereof at the inner ends of its side flanges, a second blank forming in the erected carton a back wall having articulated inner, outer, top and bottom wall members and a glue member attached to the bottom wall member disposed on the carton proper bottom to upstand to a height substantially equal to the height of the walls of the carton properand in face contact with the back wall of the carton proper, tucking flaps at the outer ends of the back wall inner wall member enfolded by ,the side wall inner and outer wall members, and interlocking means on said backwall inner wall member and said side wall inner wall members locking the carton inassembled position.

7. In a carton of the class described a first blank forming in the erected carton a bottom and upstanding front, side and back walls, said front and sidewalls each comprising articulated outer wall member, top wall member, inner wall member and bottom wall member or spacer member. said front wall having a glue flap articulated to its bottom wall member and attached to its outer wall member, tuckingflaps at the ends of the front wall inner wall member and back wall disposed transversely of the bottom, spacer flaps carried bysaid tucking flaps, said tucking'flaps with their spacing flaps enfolded by theside wallsinner, outer and top wall members, a lid articulated to said back wall including flanges at'the free end thereof and for a portionalong the sides thereof, said flanges having their adjacent ends arranged interconnected to form lid, depending flanges, said lid having a break-back score transversely-thereofat the inner ends of its side flanges, a second blank forming in the erected carton" a back wall having articulated inner, outer, top and bottom wall members and a glue member attached to the bottom wall member disposed on the carton proper bottom to upstand to a height substantially equal to the height of the walls of the carton proper and in face contact with the back wall of the carton proper, tucking flaps at the outer ends of the back wall inner Wall member enfolded by the sidewall inner and outer wall member, and interlocking means on said back wall inner wall member and said side wall inner wall members for locking the carton in assembled position, comprising a slit in each of said side wall inner wall'members and tongues projecting from the ends of the back wall inner wall member disposed in said slits.

8. In a carton of the class described a first blank forming in the erected carton a bottom and upstanding front, side and back walls, said front and side walls each comprising articulated outer Wall'member, top wall member, inner wall member and bottom wall member or spacer member, said front wall having a glue flap articulated-to its bottom wall member and attached to its outer wall member, tucking flaps at the ends of the front wall inner wall member and back wall dis posed transversely of the bottom, spacer flaps carried by said tucking flaps-said tucking flaps with their spacing flaps enfolded by the side wall inner, outer and top wall members, a second blank forming in the erected carton a back wall having articulated inner, outer, top and bottom wall members and a glue member attached to the carton lid, said back wall disposed on the carton bottom with the back wall outer wall member in face contact with the carton back wall to upstand from the carton bottom to the height of the carton front, side and back walls, a lid articulated to said back wall outer wall member including flanges at the free end thereof and for a portion along the sides thereof, said flanges having their adjacent ends interconnected to form lid depending flanges, said lid having a breakback score transversely thereof at the inner ends of its side flanges, and interlocking means on said back wall inner wall member and said side wall inner wall members locking the carton in assembled position. I

9. In a carton of the class described a first lank forming in the erected carton a bottom and upstanding front, side and back walls, said front and side walls each comprising articulated outer wall member, top wall member, inner wall member and bottom wall member or spacer member, said front wall having a glue flap' articulated to its bottom wall member and attached to its outer wall member, tucking flaps at the'ends of the front wall inner wall member and back wall dis posed transversely of the bottom, spacer flaps carried by said tucking flaps, said tucking flaps with their spacing flaps enfolded by the side wall inner, outer and top wall members, a second blank forming in the erected carton a back wall having articulated inner, outer, top and bottom wall members and a glue member attached to the carton lid, said back wall disposed on the carton bottom with the back wall outer wall member in face contact with the carton back wall to upstand from the carton bottom to the height of the carton front, side andback walls, a lid articulated to said back wall outer wall member including flanges at the free end thereof and for a portion along the sides thereof, said flanges having their adjacent ends interconnected to form lid depending flanges, said lid having a break-back score transversely thereof at the inner ends of its side flanges, and interlocking means on said back wall inner wall member and said side wall innerwall members locking the carton in assembled position, 1 comprising a slit in each of 'said s'ide wall inner wall members and tongues projecting from the. ends of the back Wall inner wall member disposed in said slits.

10. In a carton of the class described a first blank forming in the erected ca'rtona bottom and upstanding front, side and back walls, said front and side walls each comprising articulated outer wall-member, top wall member, inner wall member and bottom wall member or spacer member, said front wall having a glue flap articulated to its bottom wall member and attached to its outer wall member, tucking flaps at the ends of the front'wallinn'er wall member and back wall disposed transversely of the bottom toward one another, spacer flaps carried by said tucking flaps, said tucking flaps with their spacer flaps enfolded by the side wall inner, outer and top wall-members, a secondblank forming in the erected carton an auxiliary back wall and lid, said auxiliary back wall having articulated inner, outer, top and bottom wall members and a glue member attached to the carton lid, said auxiliary back wall being disposed on the carton bottom adjacent the carton back wall and upstanding to the height of the carton front, side'and back walls, tucking flaps from the ends of the auxiliary back wall having a rectangular cross section corresponding to the interior of the side walls and formed from extension flaps articulated to the auxiliary back. wall inner and outer wall members with each tucking flap having a top and a bottom between its extension flaps, said tucking flaps of the auxiliary back wall being enfolded by a the side wall'inner, outer and top wall members for retaining the auxiliary back wall in position, said lid being articulated to said auxiliary back wall outer wall member and including flanges at the'free end thereof for a distance along the sides thereof from said free end flange, said flanges having their adjacent ends arranged for interconnection to form lid depending flanges, said lid having a break-back score transversely thereof at the inner endsvof its side flanges, and additional interlocking means on said auxiliary back wall inner wall member and said side walls inner wall members locking the blanks in carton assembled position. a

11. In a carton of the class described a first blank forming in the erected carton a bottom and upstanding front, side and back walls, said front and side walls. each comprising articulated outer wall member, top wall member, inner wall member and bottom wall member or spacer member, said front wall having a' glue flap articulated to its bottom wall member and attached to its outer wall member, tucking flaps at the ends of the front wall inner wall member and back wall disposed transversely of the bottom toward one another, spacerflaps carried by said tucking flaps, said tucking flaps with their spacer flaps enfolded by the side Wall's inner, outer and top wall members, a secondblank forming in the erected carton an auxiliary back wall andllid, said auxiliary back wall having articulated inner, outer, top and bottom'wall members and a glue member attached to the carton lid, said auxiliary back wall being disposed on the carton bottom adjacent the carton back wall and upstanding to, the height of the carton front, side and back walls, tucking flaps from the ends of the auxiliary back wallhavinga rectangular cross section cor- 13- responding to the interior of the side walls and formed from extension flaps articulated to the auxiliary back wall inner and outer wall mem-' bers with each tucking flap having a top and a bottom between its extension flaps, said tucking flaps of the auxiliary back wall being enfolded by the side wall inner, outer and top wall members for retaining the auxiliary back wall in position, said lid being articulated to said auxiliary back wall outer wall member and including flanges at the free end thereof from said free end flange for a distance along the sides thereof, said flanges having their adjacent ends interconnected to form lid depending flanges, said lid having a break-back score transversely thereof at the inner ends of its side flanges, and additional interlocking means on said auxiliary back wall inner wall member and said side walls inner wall members locking the carton assembled posi tion, comprising slits in one of said walls inner wall members and tongues on the other of said walls inner wall members received in said slits.

12. In a carton of the class described a first blank forming in the erected carton a bottom and upstanding front, side and back walls, said front and side walls each comprising articulated outer wall member, top wall member, inner wall member and bottom wall member or spacer member, said front wall having a glue flap articulated to its bottom wall member and attached to its outer wall member, tucking flaps at the ends of the front wall inner and outer wall members and back wall disposed transversely of the bottom, the tucking flaps from the back wall each being formed from an extension thereof subdivided into panels articulated to one another and the back wall so that when transversely of the bottom each flap has a rectangular cross section corresponding to the interior of the side wall enfolding it, a lid articulated to said back wall including flanges at free end thereof and for a portion along the sides thereof, said flanges having their adjacent ends interconnected to form lid depending flanges, said lid having a breakback score transversely thereof at the inner ends of its side flanges, a second blank forming in the erected carton a hollow back Wall having articulated inner, outer and top wall members and glue flaps articulated to the inner and outer wall members secured to one another, said hollow back wall of the second blank disposed on the carton bottom between the side wall inner wall members with its outer wall member in face contact with the carton back wall and upstanding substantially to the height of the carton proper front, side and back walls, and interlocking means on said back wall inner wall member and said side wall inner wall members locking the back wall in position.

13. In a carton of the class described a first 14 blank forming in the erected carton a bottom and upstanding front, side and back walls, said front and side walls each comprising articulated outer wall member, top wall member, inner wall member and bottom wall member or spacer member, said front'wall having a glue flap articulated to its bottom wall member and attached to its outer wall member, tucking flaps at the ends of the front wall inner and outer wall members and back wall disposed transversely of the bottom, the tucking flaps from the back wall each being formed from an extension thereof subdivided into panels articulated to one another and the back wall so that when transversely of the bottom each flap hasa rectangular cross section corresponding to the interior of the side wall enfolding it, a lid articulated to said back wall including flanges at free end thereof and for a portion along the sides thereof, said flanges having their adjacent ends interconnected to form lid depending flanges, said lid having a breakback score transversely thereof at the inner ends of its side flanges, a second blank forming in the erected carton a hollow back wall having articulated inner, outer and top wall members and glue flaps articulated to the inner and outer wall members secured to one another, said hollow back wall of the second blank disposed on the carton bottom between the side wall inner wall members with its outer wall member in face contact with the carton back wall and upstanding substantially to the height of the carton proper front, side and back walls, and interlocking means on said back wall inner wall member and said side wall inner wall members looking the back wall in position, comprising a slit in each side wall inner wall members and tongues projecting from the ends of the hollow back wall inner wall member.

WILLIAM P. FRANKENSTEIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

